A convert is one who turns or changes from a state of sin to repentance, from a lax to a more earnest and serious way of life, from unbelief to faith, from heresy to the true faith; conversion is the process whereby that happens. It consists not merely in joining a Church but in a change of heart and in the acceptsance of the doctrines and submission to the laws of the Church established by Jesus Christ. This appears best in the narratives of the process of conversion by notable converts such as the Confessions of SaintAugustine of Hippo or BlessedJohn Newman‘s Apologia pro Vita Sua.